Some time when you upgrade mysql you may notice this error “start: Job failed to start”, in my case I have big databases on my vps server and causes this problem most often. The problem is that the files ‘/var/lib/mysql/ib_logfile0’ and ‘/var/lib/mysql/ib_logfile1’ are bigger in size than mysql is expecting. The solution is very simple

Some times you get squares on the web page although you have added the css file font-awesome.css successfully. The solution is very easy you and need to place the font directory (containing four font files) as well inside the CSS folder where you have placed font-awesome.css. The font directory contains four other font files. fontawesome-webfont.eot